Andina Copper Confirms New Copper Gold Porphyry Discovery at Piuquenes North, Argentina

About this update from Andina Copper Corporation.

VANCOUVER, BC - July 8, 2026 ( NEWMEDIAWIRE ) - Andina Copper Corporation (TSX-V: ANDC | FSE: FIR | OTCQB: PMMCF) is pleased to report diamond drill assay results from drillholes PIU12 and PIU13 at the newly generated and previously undrilled Piuquenes North target in San Juan, Argentina ( refer 28 May 2026 News Release ). Drilling was designed to test a large, discrete MT (magneto-telluric) geophysical target delineated in the Company's 2026 geophysical survey program. HIGHLIGHTS - Assay results for drillhole PIU13 confirms the discovery of a new porphyry copper-gold system at Piuquenes North: - - 468m @ 0.50% Cu, 0.30 g/t Au, 3.04 g/t Ag from 700m; - - Including 164m at 0.70% Cu, 0.44 g/t Au, 4.19 g/t Ag from 924m; - Mineralization in PIU13 is hosted within a strongly developed multiphase porphyry system which was intersected between 664m and 1,168m downhole. - An intense quartz vein stockwork is developed within a potassic altered early mineral porphyry phase. Chalcopyrite and bornite occur in porphyry M, A and B quartz veins and disseminations, consistent with a high temperature potassic porphyry core. - Gold is a significant co-product, with lesser silver ( refer Table 2 ). - Hole PIU12 collared approximately 600m east northeast of PIU13, intersected short intervals of mineralization within a pre mineral porphyry and is interpreted to be on the periphery of the mineralized system. - PIU12 and PIU13 have only tested a small part of the targeted MT geophysical anomaly, which measures approximately 800m by 700m and trends toward the north-northeast. The anomaly remains to be tested in all directions. - Piuquenes is now confirmed to host multiple porphyry centres, comprising the Piuquenes North discovery, and the previously reported Piuquenes Central and Piuquenes East systems, all of which lie immediately adjacent (to the north) of Aldebaran Resources Inc. Altar copper-gold porphyry project. Andina Copper's President and CEO Joseph van den Elsen commented: " We are extremely pleased with the results received from our first drillholes at Piuquenes North. High-grade Cu-Au values from PIU13 confirm a new discovery, proximate to the high-grade, near surface Cu-Au mineralization at Piuquenes Central. Significantly, only a fraction of the large geophysical anomaly at Piuquenes North has been tested, and we are now designing the next phase of drilling to expand on what is potentially a significant new porphyry discovery along the emerging San Juan Miocene belt. Since January 2025 we have rapidly advanced the Piuquenes project and to date have drilled three porphyry centres immediately adjacent to the north of the Altar copper-gold porphyry project (Aldebaran Resources Inc. Other large porphyry copper projects in the San Juan Miocene porphyry belt include, El Pachon (Glencore), approximately 30km to the south, the operating Los Pelambres copper mine (60% Antofagasta plc) in Chile, and Los Azules (McEwen Copper) 50km to the northeast."

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